"As an artist who believes in equality for all people, I will not be participating in the Boy Scouts of America Jamboree this summer," Jepsen tweeted Tuesday morning. "I always have and will continue to support the LGBT community on a global level and stay informed on the ever changing landscape in the ongoing battle for gay rights in this country and across the globe."

Her about-face comes a day after the band Train pulled out of its scheduled performance for the same reason; a petition on the site Change.org began the pressure on the two acts to remove themselves from the concert roster. GLAAD also supported the petition.

The century-old group has taken heat in recent years for barring openly gay members; in January, word leaked that it was discussing internally a lift of the discriminatory ban, but a vote on the matter was punted to its annual meeting in May.